Wrench.



I wrench.

' movable jaw 5 having a sleeve 6 embracing styled a quick acting monkey wrench.

.3 and 4, the teeth 3 being staggeredly ar- UNIT-ED FRANKLIN l). NOBLE, Ol. PITTSBURG, PENNSYLVANIA.

WRENCH.

Application filed January 21, 1908. Serial No. 411,888.

Specification of Letters Patent.

Patented April 21, 1908.

To all whom it may concern:

Be it known that l, FRANKLIN l). Noniin, a citizenof the United States of America, residing at Pittslmrg, in the county of illcgheny andState of Pennsylvania, have in f vented certain new and useful lmprovemeius in Wrenches, of which the following is aspecification, reference being had therein to the accompanying drawing. f

This invention relates to wrenches, and l more particularly to that type commonly j The primary object of myinvention is, to provide a simple and inexpensive wrench, wherein positive and reliable means are employed for holding the movable jaw of a wrench in the position to which it is adjusted.

Another object of this invention is to provide a strong and durable wrench that can be readily manipulated to obtain a large or a minute adjustment. To this end, I have devised awrench having a toothed shank with amovable jaw provided with op ositely disposed, spring pressed, alternate y engaging grip ing blocks. The blocks are moved through the medium of a movable lock-out member carried by the movable jaw of the The detail construction entering into my invention will be resently described and reference will now )e had to the drawings forming apart of specification, wherein:

Figure 1 is an elevation of a portion of the wrench constructed in accordance with my invention, Fig. 2 is a similar view illustrating the movable aw thereof in section, Fig. 3 is a horizontal sectional view taken on the line of Fig. 2, Fig. 4 is a bottom plan of the movable jaw of the wrench, Fig. 5 is a plan of 'a lock-out member as detaehed from the jaw of the wrench, Fig. 6 is a pers ective view of one of the grippin blocks, ELIM Fig. 7 is a side elevation of the look-out member.

In the accompanying drawings, 1 designates a shank having a lixed jaw 2. This shank is rectangular in cross section, and has its front and rear edges provided with teeth ranged with respect to the teeth 4, whereby an adjustment can be obtained with one of the-teeth 3 that will be approximately half way between two of the teeth 4. According to the drawin one-sixteenth inch of an adjust'nient can e obtained.

Slidably mounted upon the shank 1 is a said shank. -'lhe lower end of the sleeve 6 is [)I'Ol'ltl'til with two screw openings 7, and 18' cut away to provide two oppositely disposed surfaces 8. Adjacent to the end of the'sleeve 6, said sleeve is slotted, as at 9 for two oppositely disposed gripping bloc adaptedto alternately engage theteeth and 4 of "the shank. These gripping blocks are provided with beveled gripping edges 10, transverse grooves 11 and depending sen'ii cylindrical" lugs 12, the object of which will presently appear. The sleeve 6 has its front and rear edges above the. gripping blocks recessed, as at 13, for flat springs 14, these sprlngs being secured to the sleeve byscrews 15 and are adapted to engage in the grooves 11 of the gripping blocks. Thesprings have a tend-- ency to force the gripping blocks into engagement with the teeth and 4 of theshank.

Mo'vably mounted upon the lower end of the sleeve 6 is a lock-out member 16 provided with a double fan-tail shaped opening 17 for the shank 1. Themeniber 16 is formed with diametrically opposed curved slots18, and extending throughsaid slots are screws 19 engaging in the screw holes 7 of the sleeve 6 for holding the member 16 in engagement therewith. This member is formed with curved bearing shoulders 19 adapted to engage the oppositely disposed bearing surfaces 8, and the outer faces of said shoulders are formed with oppositely disposed concavities 20, beveled surfaces 21, and lugs 22.

gripping blocks receding over the teeth 3 and 1 of the shank 1. When it is desired to open the jaw 5 or move the same away from the jaw 2, the look-out member 16 is turned either to the right or to the left, the shape of the opening 17 of said member permitting of a rocking movement of the member -16 u on the shank 1. As the member is move in either direction, the beveled surfaces 21' of said member engaging the depending semicylindrical lugs 12 force said lugs outwardly until they impinge two of the lugs 22, these lugs limiting the outward movement of the lugs 12. In conse uence of this movement, both gripping bloc s are moved outwardly and maintained out of engagement with the teeth 3 and 4, permitting of the jaw 5 being wrench that as threads and can be manufactured at a vscription taken in connection rapidly adjusted upon the shank 1. Since the springs 14 are under tension, a very slight movement of the -member 16 will be impetus for the member to r turn comparatively small cost My invention is susceptible to such changes in the-size, proportion and minor details as arepermissible by the appended claims;

Having now described my invention what I claim asnew, is

1. In a wrench, the combination with a shank having oppositely disposed staggeredly arranged teeth, and a'fixed'jaw', of a mov able jaw slidably mounted upon said shank, a sleeve carried by said jaw and embracing said shank, oppositely disposed spring pressed gripping blocks mountedin said sleeve and adapted to alternately engage the teeth of.

" said shank, depending semi-cylindrical lugs end of said member for engagement with the 7 carried by said blocks, embracing the shank and mounted for rocking. movement on the shank independently of the movable jaw, and shoulders at each said jaw and embracing said shank,

lugs.

comprising a sleeve,

} blocks,

a lock-out memberseams lugs on said blocks to move the blocks out of engagement with said shank.

2. The combination with a teothed shank having a fixed j aw, of a movablti'jaw slidably mounted upon said shank, a sleeve carried-by mounted in said sleeve and engaging said shank, depending lugs carried by said blocks, a lockout member connected to the lower end of said sleeve to rock on said shank, the

of the sleeve, and beveled shoulderscarried at opposite ends of" the member for engagement with said lugs to move said blocks out i of engagement with said shank;

. PP sitely disposed spring pressed gripping blocks;

Q movement of said member being independent 3. In a wrench, a gripping mech'anism comprising a sleeve, oppositely disposed spring pressed said sleeves, depending lugs carried by said blocks, and .a lock-out member movably mounted at the lower endofsaid sleeve and ,1

having beveled. shoulders for engaging said 4. In a wrench, a gripping mechanism spring pressed gripping locks mountedin said sleeve, depending lugs carried'by said oppositely disposed I gripping blocks mounted in and means movably mounted upon the lower end of said sleeve-for engaging said v lugs and moving'said blocks outwardly.

In testimony whereof I aflix my signature in the presence of two witnesses. FRANKLIN ID. NOBLE. Witnesses: p

MAX H. SRoLovITz',

BUTLER. 

